Here I report on our studies of the electronic properties of elliptical quantum dots in a perpendicular external magnetic field, and in the presence of the Rashba spin-orbit interaction. Our work indicates that the Fock-Darwin spectra, corresponding to the non-interacting electrons in an elliptical quantum dot display a strong signature of the Rashba spin-orbit coupling even in a low magnetic field, as the anisotropy of the quantum dot is increased. An explanation of this pronounced effect with respect to the anisotropy is presented. The strong spin-orbit coupling effect manifests itself prominently in the corresponding dipole-allowed optical transitions and hence is susceptible to direct experimental observation.
| Identifer | oai:union.ndltd.org:MANITOBA/oai:mspace.lib.umanitoba.ca:1993/23604 |
| Date | 13 April 2012 |
| Creators | Avetisyan, Siranush Jr |
| Contributors | Chakraborty, Tapash (Physics and Astronomy), Southern, Byron (Physics and Astronomy) Schreckenbach, Georg (Chemistry) |
| Publisher | American Physical Society |
| Source Sets | University of Manitoba Canada |
| Detected Language | English |
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